<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="el-icon-user-solid"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            type="password"
            v-model="loginForm.password"
            prefix-icon="el-icon-lock"
          ></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      loginForm: {
        username: "admin",
        password: "123456",
      },
      loginFormRules: {
        username: [
          { required: true, message: "请输入账号", trigger: "blur" },
          { min: 3, max: 5, message: "长度在 3 到 5 个字符", trigger: "blur" },
        ],
        password: [{ required: true, message: "请输入密码", trigger: "blur" }],
      },
    };
  },
  methods: {
    //重置登录表单
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    //预验证
    login() {
      var that = this;
        this.$refs.loginFormRef.validate(valid=>{
            if(!valid) retrun;
            this.$http.post('login',this.loginForm)
            .then(function(res){
              if(res.data.meta.status!==200) return that.$message.error('登陆失败');
              that.$message.success('登录成功');
              window.sessionStorage.setItem("token",res.data.data.token);
              that.$router.push('/home');
            })
        })
    }
  },
};
</script>


<style Lang="less" scoped>
.login_container {
  /* background-color: aqua; */
  background: url(../assets/mubiao.png);
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: white;
  border-radius: 3px;

  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px gray;
}

.login_box .avatar_box {
  background-color: white;
  height: 130px;
  width: 130px;
  border: 1px solid white;
  padding: 10px;
  border-radius: 50%;
  box-shadow: 0 0 10px gray;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
}

.login_box .avatar_box img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: gray;
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>